I confess all I know about Australian weather is that it doesn't rain much on Marty and Moog
I think they are in NSW?
Yes, Sikaflex. The biggest problem with those types of adhesives is that you only need 5g of a 400g tube. I can't find any in small containers, apart from one brand of marine sealant which is more expensive for 200g than for 400g
If I start production of these things I really need to find a way to pack it in to sachets without it starting to cure.